Portable pneumatic grinder



FIG. 1 is a perspective view of a portable pneumatic grinder showing my new design;

FIG. 2 is a front view thereof, the rear view being ommited since it is symmetric with respect to FIG. 2;

FIG. 3 is a sectional view taken along lines A--A of FIG. 2;

FIG. 4 is a top view thereof, the bottom plan view being omitted since it is quite same as FIG. 4;

FIG. 5 is a left side view thereof; and,

FIG. 6 is a right side view thereof. 

The ornamentatal design for portable pneumatic grinder, as shown. 